AWS Security Hardening

Lock your AWS account down before someone else tries the door.

AWS security hardening is the work of fixing the weak spots in your cloud environment and keeping them closed. We tighten identity and access, lock down the network, turn on encryption and logging, and bring your account into line with the CIS AWS Foundations Benchmark. An audit tells you what is wrong; this is the service that fixes it. Delivered by AWS-certified engineers.

Hardening scopeCIS-ALIGNED

Fixed and documented.

IAMLeast privilege
NetworkLocked down
EncryptionAt rest, in transit
LoggingCloudTrail, GuardDuty
PatchingOS and AMI baseline
EvidenceEvery change logged
What Hardening Covers

Six places an AWS account gets locked down.

No scare tactics. These are the six areas where a cloud account is usually left open, and the work of closing each one, in plain language.

01 · IAM

Least privilege and credential hygiene

We trim over-broad policies to least privilege, remove unused users and access keys, enforce MFA, replace long-lived keys with roles, and tighten who can assume what across accounts. Identity is where most real damage starts, so it is where we start too.

Least privilegeMFARole over keys
02 · NETWORK

Security groups and network lockdown

We close management ports open to the world, tighten security groups and NACLs to what actually needs to talk, put private resources in private subnets, and lock down public exposure across the VPC. What is reachable from the internet should be a decision, not an accident.

Security groupsNACLsVPC
03 · ENCRYPTION

Encryption at rest and in transit

We turn on encryption across EBS, RDS, S3 and snapshots, enforce TLS on every hop, and tighten KMS key policies so only the right roles can decrypt. Backups get the same treatment as the primary data, because an unencrypted snapshot is the gap attackers actually use.

KMSTLSEncrypted backups
04 · LOGGING

Logging and detection

We switch on CloudTrail across all regions with tamper-resistant retention, enable GuardDuty and Config, wire up VPC flow logs, and make sure an alert actually reaches someone. Logging that nobody reads is not detection, so we close that loop rather than just ticking the box.

CloudTrailGuardDutyConfig
05 · PATCHING

OS and AMI patching baseline

We set a patching baseline for your EC2 fleet and the AMIs it is built from, so instances launch already current rather than needing a scramble later. Where it fits, patching moves onto a scheduled cadence with a rollback path, not a manual chore that quietly slips.

EC2AMI baselinePatch cadence
06 · CIS

CIS Benchmark alignment

We measure the account against the CIS AWS Foundations Benchmark and bring it into alignment, adapted to your workload rather than applied as a blunt checklist. You end up with a hardened environment measured against a recognised standard, and the evidence to show where it stands.

CIS AWS FoundationsAdapted to workloadEvidence
Where Hardening Fits

Find, fix, test. Three jobs, not one.

Hardening is the middle step in a security cluster, and it helps to know which service does which job so you buy the one you actually need.

Step 1 · Find

The audit finds the gaps

A read-only review of how your AWS account is configured, producing a rated list of findings. It tells you what is wrong; it does not change anything.

Cloud security audit
Step 2 · Fix

Hardening locks it down

The remediation work on this page: we close the findings, lock the environment down to CIS alignment, and document every change so you keep an evidence trail.

Scope a hardening sprint
Step 3 · Test

VAPT tests the result

Once the environment is hardened, penetration testing proves it from an attacker viewpoint. Application-layer testing sits alongside it for the software you wrote.

VAPT and penetration testing
The four fit together: the cloud security audit finds the gaps, hardening fixes and locks the environment down, VAPT tests the result from the outside, and a cloud application security assessment goes deep on your own code and apps. You rarely need all four at once, and we will tell you which one answers your actual question.
Engagement Shape

A sprint, or an ongoing habit.

Hardening is not a one-and-done if the account keeps changing. Two shapes, depending on where you are.

SPRINT

One-time hardening sprint

Assess the account, fix the findings, and hand back an evidence report that shows what changed and why. A focused piece of work with a defined start and end, ideal when you need the account locked down for a launch, a customer security review, or an audit window.

ONGOING

Continuous, under CloudOps

An account that keeps changing keeps drifting, so hardening can run as part of an ongoing retainer rather than a single sweep. Our CloudOps service is the parent for ongoing operations, with hardening folded into monitoring, patching and incident response.

EVIDENCE

Documented, either way

Every change is written down: what it was, why it was made, and what it closed. You keep the evidence trail, which is exactly what a customer security questionnaire or an auditor will ask you to produce later.

Who Does The Work

AWS-certified engineers, not a script.

Hardening changes real production settings, so who makes the change matters.

TIER

AWS Advanced Tier Services Partner

Partner tier is public and verifiable, and it reflects certified staff and delivered work rather than a logo on a website. You can check it before you talk to us.

CERTIFIED

Every delivery engineer AWS-certified

The people making changes to your account are AWS-certified engineers, stated at team level. We do not hand your production environment to whoever is free.

FOUNDER

Founder on the engagement calls

The founder attends engagement calls, so the person accountable for the company is in the room when decisions about your environment get made, not a salesperson who hands you on.

Common Questions

What buyers ask before hardening.

If your question is not here, ask it on the call. We would rather scope honestly than lock down things that did not need it.

What is the difference between a security audit and hardening?+
An audit finds the gaps; hardening fixes them. A cloud security audit reviews your AWS environment and hands you a rated list of findings, but it does not change anything. Hardening is the remediation work: we close the findings, lock the environment down, and document each change. Many teams do the two together, the audit first so the hardening is targeted rather than guesswork. See our cloud security audit page for the finding side, and this page for the fixing side.
Do you follow CIS Benchmarks?+
Yes. We use the CIS AWS Foundations Benchmark as the baseline and adapt it to your workload, because a control that makes sense for a regulated bank can be overkill for an early-stage product. To be precise about wording: we align your environment to the benchmark, we do not issue a CIS certification, and we will not claim one. What you get is a hardened account measured against a recognised standard, with the evidence to show it.
Will hardening cause downtime?+
Most hardening changes are zero-downtime: tightening an IAM policy, enabling encryption on a new resource, turning on logging, closing an unused port. The genuinely risky changes, like rotating a key in active use or re-architecting a security group that live traffic depends on, are staged and scheduled with you, with a rollback planned first. Nothing is applied blind in production. If a change carries real risk, you hear about it before we make it.
What does AWS security hardening cost?+
It depends on the state of the account and how much you want locked down, so we scope it on a free call rather than quoting a number that ignores your environment. A one-time hardening sprint on a single account is a smaller piece of work than an ongoing program across a multi-account organisation. We share full pricing before any commitment, with no gated discovery and no open-ended hourly meter. If a lighter piece of work would get you most of the way, we will say so.
How long does hardening take?+
Scope drives it. A one-time sprint on a single account, where we assess, fix and hand back an evidence report, is usually a short engagement measured in days to a couple of weeks. A larger multi-account estate takes longer, because most of the time goes into understanding what is deployed before anything is changed. We agree the scope and the timeline in writing before we start, and we do not pad it.
Can you harden Azure or GCP environments?+
Our hardening service is AWS-focused, because that is where our depth and certifications are, and we would rather tell you that than learn Azure on your environment. If your estate is on Azure or Google Cloud, we can still review it through our cloud security audit and hand you a prioritised findings report, but the hands-on remediation service on this page is AWS-only.
Is HAZERCLOUD itself certified?+
HAZERCLOUD holds ISO 27001:2022 and ISO 9001:2015 certification, so the team hardening your environment is audited against a recognised information security standard itself.
Ready to lock it down?

30 minutes. We will tell you what needs hardening first.

Bring your AWS account and we will look at it with you. If the quick wins are things you can close yourself, we will say so. If a hardening sprint is warranted, you get a fixed scope and a fixed quote before anything changes.

AWS Advanced Tier Services Partner · CIS AWS Foundations Benchmark · AWS-certified engineers

30 min Free Consultation →